Watch fly over videos of the Port of Wilma Agronomy Hub Plant on our video page!! CHS Primeland is in the middle of construction on a state-of-the-art Agronomy Hub Plant at the Port of Wilma in Clarkston,WA. With a capacity of 24,000 tons of dry fertilizer, 2.5 million gallons of liquid, and a massive crop protection product warehouse, this hub plant will be the largest in in the Inland Northwest. The plant will position CHS Primeland to better serve our member-owners through better buying power, closer product storage and better logistics. Estimated completion date is summer of 2016. Look for more exciting details and pictures as the progress improves.